1) “Mayans M.C.” season-opener, 10 p.m. FX. Three weeks before the big networks start their season, one of the most popular cable shows is back. It’s tough, taut and often brutal (especially tonight); it also has complex characters with sparse words and deep layers of emotion. At the core is EZ Reyes (JD Pardo), a probationary member of the motorcycle club; his brother hates him and his father (Edward Olmos, shown here with Pardo) has dark secrets. Meanwhile, the feds try to wipe out the rebel leader … unaware she has a deal with the cartel.
2) “America’s Got Talent,” 8-10 p.m., NBC. After a long summer, we finally have 22 acts for the semi-finals. Seven are singers (including one with guitar and another with piano), along with three vocal groups, a violinist and a guitarist. There are two comedians and an impressionist, plus two magicians, two dance groups, acrobats, a blacklight painter and a wildcard act. Tonight, 11 acts perform and viewers vote; five will advance Tuesday, with the same happening next week.
3) “Bring the Funny,” 10 p.m., NBC. In the second half of the semi-finals, six comedy acts will perform. Judges will pick two and viewers will add another; they’ll join last week’s survivors in next week’s finale, going for the $250,000 prize.
4) “NCIS.” 8 p.m., CBS. A secret bank account within NCIS seems to be financing a vigilante group. Now the team must find who’s taking justice into his own hands.
5) “Conan Without Borders: Greenland,” 10 p.m., TBS. For Conan O’Brien, this was a natural: Donald Trump was fuming because Denmark scoffed at the notion of selling Greenland to him. It was time for O’Brien to do his 12th international special, trying (tongue-in-cheek) to broker a deal. O’Brien still has his half-hour show, at 11 p.m. Mondays through Thursdays, but this week he’s replacing it with hourlong reruns of other trips. It will be Italy today, Japan on Wednesday and Australia on Thursday.